Complications associated with gastric bypass (in English only)

With any major surgery there is always a risk of complications such
as infection and increased probability of blood clots. Beyond this some
complications are specifically associated with gastric bypass surgery.
Such surgery will always result in some scarring of intestine, and this
can lead to hernia and anastomotic stricture.

An anastomosis is the surgical connection between the stomach and
intestine. When the anastomosis heals it forms scar tissue which tends
to shrink over time making the opening smaller. This is called a
stricture.

Another well-known complication is anastomotic leakage.

Gastric bypass surgery relies on the body’s healing abilities. When
the healing fails fluid from the intestine can leak into the abdominal
cavity leading to infection and abscess formation. Hernia, anastomotic
stricture and leakage can be painful, and they can result in reduced or
lost appetite. Sometimes a further operation is needed.